| Fresh Start Traders Limited | Administrative & support | 2025 |
| Fresh Taste International Limited | Wholesale & retail | 2023 |
| Fresh Thinking Advisory Ltd | Financial services | 2020 |
| Fresh Thinking Capital Ltd | Financial services | 2017 |
| Fresh Thinking Capital Two Ltd | Financial services | 2020 |
| Fresh Thinking Management Ltd | Financial services | 2017 |
| Fresh Thinking Network Ltd | Other services | 2022 |
| Fresh Thinking Partners Consultancy Ltd | Professional & scientific | 2025 |
| Fresh Thinking Partners Three LLP | | 2022 |
| Fresh Thinking Partners Two LLP | | 2013 |
| Fresh Thinking Property Four Ltd | Real estate | 2024 |
| Fresh Thinking Property Ltd | Households | 2020 |
| Fresh Thinking Property Three Ltd | Other services | 2023 |
| Fresh Thinking Property Two Ltd | Financial services | 2020 |
| Fresh Wealth Management Ltd | Public administration | 2018 |
| FRESH2DEATH Group Limited | Financial services | 2019 |
| FRESH2DEATH Limited | Administrative & support | 2017 |
| Freshco (Leeds) Ltd | Hospitality | 2019 |
| Freshcom Foods Ltd | Wholesale & retail | 2017 |
| Freshford Foods Ltd | Wholesale & retail | 2026 |
| Freshly Baked Code Ltd | Information & communication | 2014 |
| Freshology Cleaning Services Ltd | Administrative & support | 2019 |
| Freshspace Cleaning Services Limited | Administrative & support | 2025 |
| Freshways (Leeds) Limited | Wholesale & retail | 2004 |
| Freshways (Yorkshire) Limited | Wholesale & retail | 2015 |
| Freya Axworthy Ltd | Professional & scientific | 2018 |
| Freyava Consultants Ltd | Administrative & support | 2016 |
| FRG Fire and Security Ltd | Administrative & support | 2012 |
| FRG FM Services Ltd | Administrative & support | 2012 |
| FRG Group Limited | Financial services | 2018 |
| FRI3NDS' Restaurant Ltd | Hospitality | 2019 |
| Friday Energy Ltd | Wholesale & retail | 2024 |
| Friday FUN Club Limited | Professional & scientific | 2025 |
| Friden Group Holdings Limited | Wholesale & retail | 2012 |
| Fridgehub.Co.Uk Limited | Other services | 2012 |
| Friendly Holdings Limited | Real estate | 2019 |
| Friends Gems Ltd | Wholesale & retail | 2025 |
| Friends of Parkinsons Park CIC | Arts & recreation | 2016 |
| Friends of Roundhay Park | Arts & recreation | 2002 |
| Friends of the Future Collective CIC | Health & social care | 2024 |
| Friends of the Sportsman Inn CIC | Hospitality | 2024 |
| Frindzy Ltd | Wholesale & retail | 2026 |
| Frio Foods UK Ltd | Manufacturing | 2021 |
| Frizinghall Management Company Limited | Households | 1985 |
| Frizz Soft Drinks Ltd | Manufacturing | 2026 |
| FRJ Holdings Ltd | Real estate | 2022 |
| FRL 2024 Limited | Professional & scientific | 2013 |
| Frminter Ltd | Wholesale & retail | 2024 |
| Froebelian School (Horsforth) Limited (the) | Education | 1968 |
| Froggy Creative Learning Ltd | Education | 2024 |
| Froggy's Investments Limited | Real estate | 2020 |
| Froghall Project Investments Limited | Administrative & support | 2023 |
| Frolanke Telecoms Solutions Ltd | Information & communication | 2025 |
| Frolika Limited | Wholesale & retail | 2018 |
| From the Loft Ltd | Other services | 2022 |
| Froni Holding Limited | Hospitality | 2025 |
| Front Five Building Services Ltd | Construction | 2014 |
| Front Five EOT Limited | Financial services | 2021 |
| Front Hospitality Recruitment Limited | Administrative & support | 2019 |
| Front Porch Limited | Real estate | 2019 |
| Front Runners Security Services Limited | Administrative & support | 2026 |
| Frontierresolve GPR Limited | Administrative & support | 2026 |
| Frontline DEV UK Ltd | Wholesale & retail | 2017 |
| Frontline MIP Ltd | Real estate | 2017 |
| Frontline Promotions Limited | Professional & scientific | 1994 |
| Frontline Security 247 Limited | Administrative & support | 2009 |
| Fross Ltd | Construction | 2026 |
| Frost Financial Management Ltd | Financial services | 2019 |
| Frostyclothing Limited | Wholesale & retail | 2018 |
| Frostyz Ltd | Hospitality | 2025 |
| Frozen North Films Limited | Information & communication | 2013 |
| Frozen Power UK Ltd | Manufacturing | 2025 |
| FRR Holdings Ltd | Real estate | 2018 |
| Frsl Realisations (2025) Limited | Manufacturing | 1920 |
| Frugal Sourcing Limited | Wholesale & retail | 2018 |
| Fruit for Real Limited | Wholesale & retail | 2025 |
| Fruition Group Limited | Administrative & support | 2007 |
| Fruition Partners Ltd | Administrative & support | 2025 |
| Fruits and Roots Exotic UK Ltd | Wholesale & retail | 2021 |
| Fruitsit Control Ltd | Professional & scientific | 2026 |
| Fruity Packs Limited | Wholesale & retail | 2006 |
| Fruity Systems Ltd | Information & communication | 2020 |
| Fruper Ltd | Wholesale & retail | 2017 |
| FRY Wealth Limited | Professional & scientific | 2012 |
| Fryday (Upton) Limited | Hospitality | 2019 |
| Fryday's Fisheries Limited | Hospitality | 2020 |
| Frymor Ltd | Hospitality | 2003 |
| FRZ1 Ltd | Administrative & support | 2022 |
| Frzf Ltd | Financial services | 2022 |
| FS Buildings Ltd | Real estate | 2020 |
| FS GAS Solutions Ltd | Construction | 2022 |
| FS Properties (Leeds) Ltd | Real estate | 2022 |
| FSE Consult Ltd | Professional & scientific | 2007 |
| FSE Leeds Ltd | Construction | 2025 |
| FSE Property Services Ltd | Construction | 2020 |
| FSE Recruitment Ltd | Professional & scientific | 2017 |
| Fsec Property Limited | Real estate | 2018 |
| Fsec Property Management Limited | Real estate | 2025 |
| Fseuk Electrical Limited | Manufacturing | 2022 |
| FSG Roofing Solutions Limited | Construction | 2014 |